Creatures (15) 2 Den Protector 2 Nissa, Vastwood Seer 1 Greenwarden of Murasa 1 Kalitas, Traitor of Ghet 4 Mindwrack Demon 2 Tireless Tracker 2 The Gitrog Monster 1 Ulvenwald Hydra Lands (25) Spells (20) This is a much more controlling take on delirium with a greater focus on early removal than pressure
I suspect the former would be around the top 25 mark and the latter might not even get a look in at the top 50
Usually Brightstone Ritual will be slightly better, but they can both turn one mana into dozens whenever you need it
Heck, Im using Mirkwood Bats in about 12 decks right now, between Food decks, Treasure decks, aristocrat decks, and even Mardu token decks like Zurgo and Caesar
Different Art, Same Name: A "Professor's Research" with Professor Sada's art and one with Professor Turo's art are considered to have the same name